#577BC2#577BC2

#577BC2 is a mid, moderate blue. Relative luminance 0.201; OKLCH L 58.8% C 0.117 H 262.9°. Best body text is #000000 at 5.02:1 contrast (WCAG AA passes).

Color values

HEX	#577BC2
RGB	rgb(87, 123, 194)
HSL	hsl(220, 47%, 55%)
HSV	hsv(220, 55%, 76%)
CMYK	cmyk(55.2%, 36.6%, 0%, 23.9%)
CIE-LAB	lab(51.93, 8.24, -41.00)
CIE-LCH	lch(51.93, 41.82, 281.36°)
OKLab	oklab(58.82% -0.0144 -0.116)
OKLCH	oklch(58.82% 0.117 262.9)
XYZ	xyz(20.7477, 20.0856, 53.8121)
Luminance	0.2009 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577BC2 #C29E57

analogous

#57B1C2 #577BC2 #6857C2

triadic

#577BC2 #C2577B #7BC257

tetradic

#577BC2 #C257B1 #C29E57 #57C268

square

#577BC2 #C257B1 #C29E57 #57C268

split-complementary

#577BC2 #C26857 #B1C257

monochromatic

#2A4374 #3B5DA1 #577BC2 #849ED2 #B1C2E3

Accessibility & contrast

On white

4.19

#577BC2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.02

#577BC2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577BC2

5.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577BC2	#FFFFFF	#000000	##000000
##577BC2	1.00	4.19	5.02	5.02
#FFFFFF	4.19	1.00	21.00	21.00
#000000	5.02	21.00	1.00	1.00
##000000	5.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E81C5

Deuteranopia (green-blind)

#5177C0

Tritanopia (blue-blind)

#168B95

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #577bc2;
/* rgb */ color: rgb(87, 123, 194);
/* oklch */ color: oklch(58.8% 0.117 262.9);

Tailwind

colors: {
  custom: {
    50: '#8ea0d5',
    500: '#577bc2',
    950: '#000000',
  },
}

SCSS

$custom: #577bc2;
$custom-light: #8ea0d5;
$custom-dark: #000000;

JSON

{
  "hex": "#577bc2",
  "rgb": {
    "r": 87,
    "g": 123,
    "b": 194
  },
  "hsl": {
    "h": 219.813,
    "s": 46.725,
    "l": 55.098
  },
  "oklch": {
    "l": 0.58824,
    "c": 0.11685,
    "h": 262.9
  },
  "luminance": 0.20087
}

Semantic roles & 50–950 ramp

primary

#577BC2

secondary

#D1C2A4

accent

#AA51D6

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0E14

muted

#7E7E83

Preview Lab

Preview with #577BC2

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →